https://community.hpe.com/t5/operating-system-hp-ux/error-with-sioc-io-on-an-itanium-server/m-p/4228972#M687655 I'm trying to write some software that will probe an entry in /dev/rdsk and determine whether it is a CD/DVD drive and if so what sort of capabilities it has (e.g. is it a CD-ROM or a CD-Writer)<BR /><BR />I have written a program that works OK on the limited amount of PA-RISC hardware I have available, but refuses to work on the (one) Itanium box I have access to.<BR /><BR />I am using the SIOC_IO ioctl call on the /dev/rdsk/c0t0d0 device and passing a MODE SENSE (10) command with a Page Code of 0x2A (i.e. MM Capabilities and Mechanical Status Page).<BR /><BR />When I run this on PA-RISC everything is fine. When I run it on Itanium I get a CDB status of SCTL_INVALID_REQUEST.<BR /><BR />/dev/rdsk/c0t0d0 is a TEAC DV-28E-V on the Itanium server.<BR /><BR />If I instead do an INQUIRY, that works fine. So it's something specific about the MODE SENSE (10) that is causing the issue, rather than a general SCSI issue.<BR /><BR />Itanium is running 11.23<BR />PA-RISC is running 11.11<BR /><BR /> Mon, 07 Jul 2008 13:14:30 GMT Stephen Keane 2008-07-07T13:14:30Z https://community.hpe.com/t5/operating-system-hp-ux/error-with-sioc-io-on-an-itanium-server/m-p/4228972#M687655 I'm trying to write some software that will probe an entry in /dev/rdsk and determine whether it is a CD/DVD drive and if so what sort of capabilities it has (e.g. is it a CD-ROM or a CD-Writer)<BR /><BR />I have written a program that works OK on the limited amount of PA-RISC hardware I have available, but refuses to work on the (one) Itanium box I have access to.<BR /><BR />I am using the SIOC_IO ioctl call on the /dev/rdsk/c0t0d0 device and passing a MODE SENSE (10) command with a Page Code of 0x2A (i.e. MM Capabilities and Mechanical Status Page).<BR /><BR />When I run this on PA-RISC everything is fine. When I run it on Itanium I get a CDB status of SCTL_INVALID_REQUEST.<BR /><BR />/dev/rdsk/c0t0d0 is a TEAC DV-28E-V on the Itanium server.<BR /><BR />If I instead do an INQUIRY, that works fine. So it's something specific about the MODE SENSE (10) that is causing the issue, rather than a general SCSI issue.<BR /><BR />Itanium is running 11.23<BR />PA-RISC is running 11.11<BR /><BR /> Mon, 07 Jul 2008 13:14:30 GMT https://community.hpe.com/t5/operating-system-hp-ux/error-with-sioc-io-on-an-itanium-server/m-p/4228972#M687655 Stephen Keane 2008-07-07T13:14:30Z